System of locking.



PATENTBD MAY 29, 1906.

A. KRBBS. SYSTEM OF LOCKING.

APPLIGATION FILED OUT. 9. 1905.

2 SHEETS-SHEET 1.

PATEfiTED MAY 29 A" KREBS. SYSTEM OF LOCKING, APPLICATION FILED 00219, 1905.

2 SHEETSSHEBT 2.

' provided in the parts 1 and I).

low 8 is presented in lront ol the ball 7. The

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Specification of Letters Patent.

Patented May 29, 1906.

Application filed October 9,1905. Serial No 282,068.

To all who/1t i/ 11m colt WW4 Be it known that l, An'rni' n liniins, engineer, a citizen of the French .llepnblic, residing" at Paris, France, (Department of the Seine,) and having pr, st-ollice 2ll.l(ll'(l f$ .l 2; Avenue d'lvry, in the said city. have invented certain new and nsel'ul improvements in Systems ol' Locking, of which the following is a specification.

This invention l as for its object a system oi locking which allows ol carrying along by means of a part making mechanieally-con trolled shilts dnrinp a certain part oi its course another piece shitting parallel to the first. The invention likewise deals with the application of this system of interlocking to the action of the speed-changing shitting spur-wheels for i'notor-cars.

(in the annexed d rawings, Figures 1,2, and 3 are fragmentary sectional views ol the lock-- ing elements in dill'erent positions. Fig. l is a sectional side elevation of the locking elements in connection with a speed-changing mechanism in dotted lines. Fig. 5 is a sectional View on the line A A oi Fig. i

Let there be two parts 1 2 which can slide upon each other or one inside the other, the

part 2 being moreover capable, of shifting along a 'lixed wall The'part l moves in the direction of the arrow 4 and carries with it the part 2 in its movement by means of an abutment-piece 5. lVhen 1 moves in the direction opposite to the arrow, if'it is desired to carry along the piece 2 during a part oi the course of 1 and afterward keep it motionless While the part 1 continues its movement, a

system of interlocking must be adi'iptedf For instance, the piece 2 may have a. hell w 6 .19". do '.1...1 s inside, igs. s an o, in Vt nnn is p accn a. par 7 of a suitable ferns-as, for lilStflllCQ, a ball or cylinder oi a diameter exceeding the width oi the part 2 and forming a locking device.

ltccesses ti and l) of a. suitable shape for receiving the ball 7 or other suitable form are in the posh tion represented on his". 2 the ball I is constantly inserted and maintained in the low 9 ol" the. part 2% by the plane Face 0 part 1.. The parts 1.? and 3 are thus incite: together. it the piece I is shifted in the di-- rociiion shown by the arrow, only slides on 2 freely until the abutment-pie 'ze pushes this latter forward. At this moment the nollatter can leave its receiver 9, and the parts 1 :ind 2 are connected together (position-in Fig. 3) as soon as the plane face of 3 presses upon the ball. .ltnew 1 be shilted in the direction opposite the arrow 4, the part2 is carried along, as it is made solid with l by the ball 7. The part will be carried on until it strikes against the abutment 10 of the part 3. Then the ball once more enters into the recess 9, leaving the. recess 8. The parts 1 and 2 are no long-er iixedly connected, and the part 1 continues its movement alone. This method ol locking finds application in the action of shitting spur-wl eels for speed change. Fig. 4 shows an example of this application. 11 shows the motor-shaft; 12, the control-shaft arranged in the extension of the motor-shaft. 13 is an intermediate shaft for low and medium speeds. The motor-shalt 11 carries a sleeve 14, partaking oi the rotation of this shalt, butwhich can be displaced along the length of the shaft. On this sleeve are lixed I three toothed pinions 15 16 17. On the intermediate shaft 13 are directly fitted two toothed pinions 1S and 19, intended to mesh with the pinions 16 and 15, respectively. ()n

the shaft 13 there is further fitted a sleeve 20, sharing in the rotation of the shaft, but capable ol displacement along its length. This sleeve carries a toothed pinion 21, which may engage with a pinion 17, and it also carries a pinion 22, engaging normally with a gear 23, fitted on the control-shaft 12. This pinion 23 further has inside gear-teeth 24, which for running at a high speed mesh with the pinion 17. A fork 25 serves to 0perate the shifts of the sleeve 1 -1. For IU11- hing at slow and medium speeds it is suflicient to shift the spur-wheels 15, 16, and 17 by means ol the fork in order to mesh either the gears 16 and 15% or the gears 15 and 19 or the gears 17 and 21, the gears and 232 being presumed to he engaged.

For running athigh speed, on the cont y, the gears 37 and 24 are meshed direct. When this meshing; takes place, it is expedient to uninesh automatically the gears/22 and 23, so that the shaft 13 should ndt he needlessly carried with them. Thd shift of the sleeve 20:, carrying the pinions 21 and 22, is operated by means of a fork 26. The 1 27 or this fork QGis hollow, and in the inside of this red a prolongation 28 of the rod of the fork slides. Further, the rod 27 shiftslin able element mounted to movewith said mova fixed block 29. A groove or hollow is provided in the rod 27 to receive a ball 31 ofa diameter'slightly exceeding the thickness of the full part of the rod, and in the prolongation 28 of the rod of the fork 25, well as in the block 29, recesses or dents 32 and 33 are provided in suitable places. It will be un- :derstood that when the fork 25 is shifted in the direction of the arrow 34 the fork 26 is carried along by the abutment The sleeve 20 is therefore shifted in'the direction ;'.of the arrow, and the unmeshing of the gears 22 and. 23 takes place at the same time as the i 5 meshing of the gears 17 and. 24 is effected. -When it is desired to run at. a slower speed and the fork 25 is shifted in the direction op posite to the arrow, the ball 31, engaged in the recess or dent 32, insures the interlocle ing of .the rods 27 and 28, and the fork 26 is carried along in the direction opposite to the arrow until the moment when the gears 22 and 23 being once more meshed the ball 31 is once more facing the dent or recess 33 in the, block 29. At that moment the sleeve 20 -c jo1 11 s into contact with an abutment 36 of theshaft 13. The shift of the fork 25 from f that time continues independently of the 'fork26. I 7;. Having now particularly described and ascertained, the nature of my said invention and in what manner the same is to be performed, I declare th'atwhat I claim is i A mechanism of the class describedincl'nding. a movable recessed member, a shift their and havin a recess therein for receiving a jdisplaeeable element, a displaceable element "in said recessfor locking the respective memfbers to ethenfanda fixed member having a recess 1 or'receivin'g the displaceable element hen one of the members is actuated. 2. In an interlocking device, a plurality of 5 other, a fixed member, each of the said meme hers provided with recesses, and a displaceembers movable with respect to one an- ,moved. in one direction.

nesse's. V

able members for locking the same together when one of said members is shifted,

3. In mechanism of the class described, a plurality of shiftable members arranged one within the other, each provided with recesses adapted to be brou ht in register with one another, a displacea le element of a greater diameter than the depth of the recesses for lockin the movable members together, and a member having a recess for receiving [the displaceable element when one of the members is moved in one direction.

.4. In mechanism of the class described, a

shiftable recessed member, a. recessed mem ber surrounding the said movable member and. adapted for movement on the same, a displaceableelement mounted in the recess of the last-mentioned member for locking the respective members together when either of the same areactuated in one direction, and a fixed member having a recess for receiving the displaceablc element when one of the members moved in an opposite direction.

5. In a geanchanging mechanism, a recessed shiftable rod, a movable member surrounding the same and having a recess adapted to'be brought into register with the recess in the rod, a ball of greater diameter 75 than the thickness of the member mounted in the recess'of-the latter for locking the rod to the said member when the recesses are in register with one another, and a fixed member having a recessadapted to register with the I I recesses in the res ective rod and said memablemember surrounding the inovablemembar for receiving t e ball and for'locking said member against movement when the rod is In testimony whereof I have hereunto set my hand in presence of. twosubseribing w'it- {ARTHUR ennel-'- Witnessesf v PIERRE LEINE,

MAs DE RIRAND. 

